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Related to Gravitropic: geotropism


Growth or movement of a sessile organism in response to gravity, as the downward growth of plant roots. Also called geotropism.

grav′i·tro′pic (grăv′ĭ-trō′pĭk) adj.
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2012) GOLVEN secretory peptides regulate auxin carrier turnover during plant gravitropic responses.
The primary root system is a positively gravitropic taproot system, with lateral roots branching off the main taproot (Jones, 1993; Grobbelaar, 2004).
1], 100% of the seedlings showed some abnormality (see Table 1): severe atrophy of the stems, roots, leaves or absences of these parts; gravitropic inversion; and necrosis of the stems, roots or leaves.
Four types of anomalies caused by extracts were identified as damaging or weakening seedling development: 1) root atrophy; 2) early secondary root development; 3) gravitropic plant inversion and 4) root necrosis, according to Regras para Analise de Sementes (BRASIL, 2009).
Dr Kepinski said: "We have found that another growth component -- the 'anti-gravitropic offset' -- counteracts the normal gravitropic growth in these lateral branches.
We have identified 10 independent gravitropic suppressor lines that may represent novel genes involved in this function.
Changing the Density of the External Medium Changes the Gravitropic Response of Rice, Corn and Radish Roots.
Involvement of brassinosteroids in the gravitropic response of primary root of maize.
However, if they are placed horizontally they will exhibit gravitropic curvature, which leads to an increase in toughness due to lignification.
2000) modelled the gravitropic effect on root system development and demonstrated that there would be less overlap of P depletion zones around lateral roots in shallower root systems.
In an experimental context we have advanced our technology into several fields, including reproductive physiology, diabetes research, neuroscience, development, gravitropic responses, ion transport, and bomeostasis.